A runner hopes to compleate the 10,000m run in less than 30.0min. After running at a constant speed for exactly 27.0min there are still 1100m to go. The runner must then accelerate at 0.20 m/s^2 for how many seconds in order to achieve the desired time.(adsbygoogle = window.adsbygoogle || []).push({});

Ill briefly summarize what i tryed...

Init. Velocity = (10,000-1100) /(27min * 60s) = 5.5 m/s

Final Velocity = 1100/(180-t) since t is not know, because i dont know yet how long it will accelerate for

i was then gonna use VF^2 = VI^2 + 2ad to find the distance it must accelerate for, and use that to find the time, this seems rather wrong, hence my confusion, but i figured id give my idea anyway

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# Homework Help: Kinematics In One Direction Problem

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